Apparatus for distance gas-lighting.



E. W. HAVERS. APPARATUS PoR DISTANCE GAS LIGHTING.

APPLICATION FILED DEG.12. 1913.

v 3 0 n x 9 2 SHEETS-SHEET l.

Patented Mar.23,1915.

.L TP A 46W PETERS :c FHoYS-LJTHG., AIASHINGION. D. C.

E. W. HAVBRS. APPARATUS PoR DISTANCE GA LIGHTING.

APPLICATION FILED DBO.12. 1913.

Patented Mar. 23, 1915.

z SHEETS-SHEET 2r THE MORRIS PETERS CO,PHOTU-L1lf-W..wannvuroM. D c

unirsi) srarus Parana: erica?.

EPI-IRAIM WILLIAM HAVERS, OF LONDON, ENGLAND.

.APPARATUS FOB :DISTANCE GAS-LIGHTING.

Application led December 12, 1913.

To all whom it may concern Be it known that l, Eri-marit lfiTiLLrnarHnvnns, a subject of the King of Great Britain, residing at London,England, have invented new and useful Improvements in Apparatusl forDistance Gas-Lighting, ot which the following is a specification.

My invention relates to improvements in apparatus for distance controland ignition of gas burners of that kind which consist of a valve forcontrolling the supply of gas combined with a burner in which isarranged an electrical igniting device.

The object oi my present invention is to provide an apparatus which issimpler in construction than heretofore, is easily accessible forcleaning, and which is self-contained. Furthermore, the apparatushereinatter described is suitable not only for coal-gas burners, but forburners for petrolair-gas, and other like mixtures.

ln the accompanying drawings Figure l illustrates in partial verticalsection one form of apparatus constructed according to my presentinvention and applied to an inverted burner; Fig. E2. an underside viewot the lower end of' Fig. 1; Fig. 3 an enlarged view of the electricaligniter of Fig. 1; Figs. l and 5 detail views of modified forms ofburner ends; Fig. 6 a section of a modified form ot regulator; Figs. 7to 10 illustrate various modified forms of inverted burners; and Fig. l1shows the application of my invention to an upright burner.

Similar letters of reference relate to like parts in all the figures ofthe drawings.

Referring to Figs. l, 2 and 3, g is the casing containing any suitablevalve device Jfor controlling the admission of gas, and below theconnection c is situated a regulator or nipple consisting ot an innerpart n having a plurality of holes, and in the case of a regulator asshown, each hole is furnished with a tapered needle p or the likearranged to enter or recede from its hole, thus regulating the openingof the same. The needles p are carried by a small cup Q which is raisedand lowerd by means or" a crank-pin r acting upon a slot in the cup gwhen the button s is turned in either direction. Or l sometimes employ aregula.- tor of the kind shown in Fig. 6, in which the regulating screwis adapted to shut oil' one or more of the `holes u as the saidSpecicaton of Letters Patent.

Patented Mar. 23, 1915.

serial No. 805,160.

screw t is turned more or less in one direction.

The outer part o of the regulator or nipple (Fig. l) is electricallyinsulated from the inner part n, and to the latter part is attached acentral conductor-rod o which extends in a downward direction as shownin Fig. l (or in an upward direction in the case of an upright burner tobe hereinafter described with reference to Fig. 11), and is connected atthe lower end to the central tube w of the igniter device by slidingtherein or thereon, or otherwise. The central tube fw of the igniter isdiverted from the central line as shown in Figs. 1 and 3, and passesthrough an insulating block contained within the outer metal tube y, andreceives one end 01"' the platinum igniting coil or filament e, theother end of the latter being similarly held in a short metal tube 2which is partly embedded in the insulating bloclr a@ but is inelectrical contact with the outer metal tube y. rlhe ends of the coil orfilament .z are retained in their respective tubes w and 2 by anysuitable means, as for example by crushing the ends of the said tubesaround the ends of the coil or filament in a known manner. The upper endof the outer metal tube y of the igniter is connected to the lower endof the ordinary mixing tube or chamber 3 by means of a conicalconnection 4 with air openings 5 in the side wall thereof in which maybe fitted a gauze, and the whole may be inclosed by a screwed nozzle 6.Or the conical connection d may be perforated in such a manner as `toallow the gauze to be dispensed with. The annular space 7 between theinner circumference of the nozzle 6 and the outer circumference of theigniter tube y form the aperture through which the gas and air mixtureissues, and is ignited by the incandescent coil or iilament e in theigniter tube y. The nozzle 6 may have prongs or radial ribs 18internally for centering the igniter and insuring its correct position.

On gas being admitted to the regulator or nipple 0 through the valve, itpasses with an appropriate quantity of air down the mixing tube orchamber 3 to the nozzle 6 where it issues by the annular aperture 7 andis ignited by the incandescent coil or filament e within the ignitertube y. rFhe coil or filament e is rendered incandescent by a current ofelectricity which may pass from the terminal z' of the valve-actuatingdevice, through the central insulated metal portion n to the regulatoror nipple, and

thence by the central conductor rod o to the central tube 'w of theigniter, and through the coil or filament .e rendering the sameincandescent. rihe current leaves the other end of the coil or filamente by the short lo length of tube 2 and passes through the outer metaltube y, the conical connector A, the mixing tube or chamber 8, the outerpart 0 of the regulator or nipple, to the terminal j. Or the connectionsmaybe varied according to requirements.

)Vhen employing an inverted burner for petrol-air-gas or other likemixtures, l prefer to employ a nozzle fitted with gauze or perforationsat the orifice thereof surrounding the ignition chamber, for the purposeof breaking up the mixture and assisting ignition. Fig. A shows a numberof slots or perforations formed in a metal cap @Z screwed on to the endof the burner nozzle 6; and Fig. 5 shows an annular gauze ring e held inplace on the nozzle burner 6 by means of a cap 7 screwed on to the saidnozzle. Or the slots or perforations may be formed in the end of thenozzle 6 itself.

In the modification illustrated in Figs. 7 and 8 the upper ends of theconductors 8, 9 are connected below the gas regulator or nipple 0 to twoseparate upwardly extending semi-cylindrical members 19, 20 and mountedon a common insulating base 22 (which may also form a choke-bore asshown) and be adapted to fix on to similar electrical conductors 8", 9above by a bayonet joint thereby completing electric connection to theigniter and forming a support for the burner in a simple and efiicientmanner. Or the conductors may extend through holes drilled on eitherside of the gas regulator, always being suitably insulated therefrom.

Chokebores for securing efficient mixing may be fitted as desired, andin some cases these choke-bores may have grooves or slots to allow thepassage of the conductors 8, 9

instead of these passages being formed in the mixing tube 3. 0r themixing tube may be rifled, and the conductors 8, 9 bent to lieb in therecesses outside the said mixing tu e.

In the modification illustrated in Fig. 9 the mixing tube 3 and theburner nozzle 6 (to avoid direct conduction of heat) are connected toflanged extensions 28 and 24. Layers of insulating material 27 and 28,

such as asbestos for example, are provided between these flangedextensions 23 and 24:, and the whole are clamped together by anyconvenient means which maintain the insulation of the said parts 23 and24. In

this case the conductors 8, 9 may be entirely external, and be formed ofdepending members as shown, the current from these being led into thenozzle 6 through the screws 25 and 26 as shown. A similar arrangement isillustrated in Fig. 10 applied to a burner 7o with a central conductorrod o, the electrical connection between the conductor 9 and the outermetal tube y of the igniter being effected through the screw 25, flange241, and cone A; and between the conductor 8 and 75 the central rod vthrough the screw 26 and the horizontal extension @X of the said rod.

Fig. l1 illustrates the application of the central conductor rod o(hereinbefore described with reference to Fig. l), to an up- 8o rightform of burner, in which it will be seen that the igniter tube g/ isdisposed centrally of the burner proper 29, and that the valve casing gand its actuating parts are arranged at the lower part of the burnerfitting. ln other respects the construction of this upright burner is onthe same lines as already described in connection with the invertedburners.

Claims:

l. Apparatus for distance control and ignition of gas, comprising aburner nozzle 6, an electrically incandescent filament (z) mounted intwo tubes (w, 2) insulated from one another and contained within a shortmetal tube (y) disposed centrally of the interior of the said nozzle(6), a gas regulator (0) with an insulated central portion (n), acentral conductor rod (c) between the said insulated central portion ofl0@ the regulator (0) and the tube (w) carrying one end of the lament(e), the tube 2) which carries the other end of the said lament being incontact with the before mentioned short metal outer tube and outercasing of the apparatus, substantially as described.

2. Apparatus for distance control and ignition of gas, comprising aburner nozzle (6), an electrically incandescent filament (e) mounted intwo tubes (w, 2) insulated from one another and contained within a shortmetal tube (y) disposed centrally of the said nozzle (6), a gasregulator (o),

insulating base (22), two separate semi- 315 cylindrical members (19,20) mounted upon the said base (22) which complete the electric circuitto the filament (e) and form a support for the burner, substantially asdescribed.

3. Apparatus for distance control and ignition of Oas, comprising aburner nozzle (6), an electrically incandescent filament (e) mounted intwo tubes (w, 2) insulated from one another and contained within a shortmetal tube (y) disposed centrally of the interior of the said nozzle(6), a gas regulator (o) with a plurality of holes and formed of twoseparate insulated parts (o, n), and a central conductor rod (o)removably and centrally connected to the inner separate insulated part(n) of the said regulator (o), substantially as described.

4. Apparatus for distance control and ig- 5 nition of gas, comprising aburner nozzle (6), an electrically incandescent filament (e), aninsulating block a short tube (w) in the said block (x) which receivesone end of the said larnent (a), and an- 10 other short tube (2) inmetallic connection With the casing containing the said insulating blocksubstantially as described.

In testimony whereof I have signed my name to this specification in thepresence of l5 two subscribing Witnesses.

EPHRAIM VILLIAM HAVERS. lVitnesses:

STEPHEN EDWARD GUNYON, ALEXANDER EDWARD BECK.

Copies of this patent may be obtained for nve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

